(19)

(11)

EP 4 031 444 A1

(12)

(43) Date of publication: 27.07.2022 Bulletin 2022/30 (21) Application number: 20781622.4 (22) Date of filing: 18.09.2020

(51) International Patent Classification (IPC):  B63B 21/66(2006.01) F41F 1/00(2006.01) B63C 7/00(2006.01) B63B 35/00(2020.01) F42B 12/68(2006.01) (52) Cooperative Patent Classification (CPC): B63B 21/66; B63B 2035/008; B63C 7/00; F41B 11/62; F41B 11/80; F41F 7/00; F42B 12/68 (86) International application number: PCT/IB2020/058730 (87) International publication number: WO 2021/053613 (25.03.2021 Gazette 2021/12)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 18.09.2019 GB 201913475 28.10.2019 GB 201915622 11.11.2019 GB 201916400 09.07.2020 GB 202010593 (71) Applicant: Rats Marine Limited Felixstowe IP11 2HW (GB)	(72) Inventor: LAKER, Jonathan Felixstowe IP11 2HW (GB) (74) Representative: Dummett Copp LLP  25 The Square Martlesham Heath Ipswich IP5 3SL Ipswich IP5 3SL (GB)